Hypodermic syringe applicating device

ABSTRACT

The applicator includes a hypodermic syringe holder telescopingly mounted for movement within a guide portion. A spring normally biases the holder and guide into a telescoped position. A pair of arcuate segments within the guide portion are spring biased into an annular groove in the holder for releasably positioning the holder and guide in an extended relationship under spring tension. Adjacent ends of the segments are bevelled and cooperate with bevelled ends of an actuator for releasing the segments from the groove.

ypodermic syringe ent within a guide er and guide into a er and guide inan ex- -2',6 1'7,'oi0 7/1936 Dickhison.........

3,073,306 1/1963 Linder....... 3,086,530 4/1963 Groom FOREIGN PATENTS394,498 11/1965 Switzerland..................

Primary Examiner-Samuel Koren Attorney-Charles Richard Werner 128/215,7, 128/329 ABSTRACT: The applicator includes a h AA61m05/00 holdertelescopingly mounted for movem Amm 05/20 portion. A spring normallybiases the hold 128/215 telescoped position. A pair of arcuate s 329,253

tended relationship under spring tension. Adjacent ends of the segmentsare bevelled and cooperate with bevelled ends of an 128/215 actuator forreleasing the segments from the groove.

Raul Olvera Arce Cordobanes 25, Mexico City 19, Mexico 747,277 July24,1968 [45] Patented Oct. 12,1971

1 Claim, 12 Drawing Figs.

References Cited UNITED STATES PATENTS M 2/1913Giordano.....................

United States Patent [72] Inventor [21] AppLNo.

22 Filed [54] HYPODERMIC SYRINGE APPLICATING DEVICE [50]FieldofSearch...............

PATENTEU 0m 1 219m SHEET 1 BF 2 INVENTOR.

RAU L OLVE RA A RCE PATENTED UCT12|97| 3612.051

sum 2 or 2 INVENTOR RAUL OLVERA ARCE WMW HYPODERMIC SYRINGE APPLICATINGDEVICE BACKGROUND OF THE INVENTION Insofar as I am aware there isnothing in the prior art which contemplates the use of an instrumentwhich receives a hypodermic syringe needle, is capable of being adjustedto regulate the depth of entrance of the needle into the flesh, andwhich can be rested on the skin and the needle quickly and easilyreleased for rapid entrance into the skin the proper depth with norelative movement in any lateral direction to cause movement orpossibility of breakage of the needle.

To my knowledge all hypodermic needles are applied in one standardfashion which is by gripping a portion of the flesh, or in the case ofintravenous injections seeking a suitable vein and then manually forcingthe needle therein estimating the proper depth and angle of needleentrance.

The injection of liquids in humans or animals requires the insertionintravenous, intramuscular or subcutaneous of the hypodermic needleafi'rxed to a syringe, the application and use of such syringes beingdelicate, because it is necessary to observe certain rules not onlyrespective to the zone of injec tion but also the depth of insertion ofthe needle.

Also, use of a hypodermic syringe needle is accompanied by an emotionalreaction by the patient, naturally averse to use of a hypodermicinjection, giving the sensation of pain, real or imaginary, related tohabit or actual feeling by the patient receiving the injection, which isdue to the manner in which the needle is introduced in the muscular orsubcutaneous portion of the patient.

SUMMARY OF THE INVENTION One essential object of the device is toprovide mechanical means for holding the syringe and the rapid andcontrolled insertion of the needle to the person receiving theinjection, in such a manner that the needle insertion is always in arapid and equal manner, in respect to the depth, assuring the compliancewith respective medical rules and practices and assuring almostcompletely the elimination of emotional'reaction and pain normallyoccasioned by such hypodermic applications.

Another object of the invention is to provide a device of the classdescribed of simple design, not subject to decomposition and capable ofrepeated use, which is required in hospitals and clinics.

One other object of the invention is to provide a device whichaccomplishes mechanically the most difficult aspect of hypodermicinjections which permits such injections to be made by the patienthimself or by any other person in the home or elsewhere without anyprevious-experience, this normally being most difficult or impossible toachieve until one has been trained and has at least some experience inthe use of a hypodermic needle in its present everyday form of use.

Another object of the invention is to provide a device of this nature ata low cost of manufacture, permitting its purchase and use in allmanners of situations where hypodermic injections are required.

Another object of the invention is to provide a device in which theinsertion of the hypodermic needle in the zone of a subcutaneous,intramuscular, or other area is accomplished by applying the apparatusin a simple and easy form.

One other object of the invention is to provide a device for theapplication of hypodermic injections in which the insertion of theneedle is accomplished mechanically and with rapidity, preventing anyemotional shock, which is particularly important with children and withanimals.

Another object of the invention is to provide a device which may beemployed for the support of various types of hypodermic syringes.

Still another object of the invention is to provide a device in whichthe same needle may be used for different methods of hypodermicinjections, such as subcutaneous or intramusculsr.

With these and other objects in mind and which may be apparenthereinafter, the invention consists in the design, con struction andfunctional combination of a device for hypodermic injections which arespecified in detail hereinafter and which are illustrated in the annexeddrawings, it being understood that changes and modifications in form,structure and size may be made without departing from the spirit of thenovelty of the invention.

I DESCRIPTION OF THE DRAWINGS In the following figures of the drawingsthe same reference numerals are applied to the same portions of theinvention, the

drawings being as follows:

FIG. 1 is a front, elevational view of the device in its workingposition, with the supporting cylinder for the hypodermic syringedisplaced outwardly preparatory for injection.

FIG. 2 is a front elevational view of the device illustrated in FIG. 1in which the cylindrical support has been displaced to its internal orinjection position.

FIG. 3 is a vertical sectional view through the device shown in FIG. 1.

FIG. 4 is a vertical sectional view through in FIG. 2.

FIG. 5 is a cross-sectional view on the line 55 of FIG. 3 illustratingthe retention segments in their cylinder supporting position. I

FIG. 6 is a similar transverse cross-sectional view on the line 55 ofFIG. 3, showing the position of the supporting segments after they havebeen displaced to permit free movement of the cylinder.

FIG. 7 is a fragmentary perspective sectional view of one form of thedesign of the upper end of the cylinder support.

FIG. 7a shows a modification of the upper end of the cylinder supportwith stepped portions for reception of various size hypodermic syringes.

FIG. 8 is a fragmentary sectional view of a portion of the cylindersupport showing by dotted lines the distortion displacement possible forreceiving and supporting the hypodermic syringe.

FIG. 9 illustrates one form of the device with respect to its lower endand the telescopic cylinder adjustment, a fragmentary part of thecylinder guide being shown in dotted lines.

FIG. 9a illustrates a fragmentary perspective part of the structure ofFIG. 9 with a portion of the guide cylinder member offset therefrom toillustrate the pin and groove arrangement between the cylinder and itssupporting element.

FIG. 10 illustrates in a fragmentary perspective disassociated view theupper portion of the guide cylinder and a cap member showing analternate form of the retention means therebetween when the cylinder isin raised position.

the device shown DETAILED DESCRIPTION The invention comprisessubstantially the provision of a mechanical means for firmly supportinga hypodermic syringe in such a form that the mechanical means results inthe desired displacement of the syringe assembly which includes a needlefixed in conventional form at its lower extremity and placed on anydesired part of the body, resulting in controlled insertion of theneedle in said part of the body, in such manner that the needle isinserted the proper depth which corresponds to the method of hypodermicinjection as applied, the device functioning by operation of a buttonwhich frees a cylinder supporting the syringe for its displacementwithin the device.

With this general assembly and relationship the basic form of theinvention illustrated in the drawings, particularly in FIG. 1, comprisesa main support or guide 10 which is a substantially cylindrical portionopen at its upper end II and lower end 12.

Another tubular support 13 is adapted to operate within thefirst-mentioned support 10, which is also open at both ends 14 and 15,as may be seen in FIGS. 3 and 4, the tubular section 13 being providedwith projections 16 at its upper end 14 for supporting a hypodermicsyringe 17 shown in dotted lines in FIG. 3.

The projections 16 are of specific internal form which permits the easyreception of lateral projections 18 of the conventional hypodermicsyringe, said projections being normally used by the user of the syringefor manipulating same by reception of his fingers.

For the purpose of accommodating various types of hypodermic syringes inthe tubular support 13, the projections 16 may have stepped portions 16which may be seen in FIG. 7a, and also may have an inherent amount ofelasticity as indicated by dotted lines. (See FIG. 8).

The projections 16 also have the facility of providing the fingerreception faculty of conventional hypodermic syringes as the index andforefinger can be received thereby for the easy operation of the plungerof the syringe and the injection of the liquid contained therein.

The lower extremity of the tubular support 13 comprises externallydisposed projections 19, which receive and support spiral spring 20,held at its upper extremity 21 by the projecting flange 22 of the mainsupport or guide member 10, all of which may be seen in FIGS. 3 and 4 ofthe drawings.

The spring may be placed in its compressed position illustrated in FIG.3, when the tubular support 13 is displaced externally of the mainsupport member 10 in which position it is held by means of a retentionmember and latch assembly 20 generally illustrated in FIGS. 5 and .6.This retention member and latch are adapted to release the spring 20 tocontrol the operation of the device and are formed of the functionalcombination of a pair of segments 23 at whose ends 24 are provided aspring segment 25 which normally forces the segments 23 into closed orsecuring position, the ends of the segments remote from the spring 25being inclined as at 27 and against which rest the inclined surfaces 29of interior portion 28 of a finger operated button 30 extending throughan opening in upper cap or collar 11. (See FIGS. 3 and 4 Thus, when thetubular section or support 13 is raised to extreme upper position thesegments 23 urged by the spring segment 25 are seated in the annulargroove 13 and retain the tubular support in the extreme upper positioncompressing the spring 20.

The operation of the button inwardly in the direction of the arrowcauses an interaction between the inclined surfaces 27 and 29 and thedisplacement of the segments 23 from the an nular groove 13 whichpermits the spring 20 to act rapidly, forcing the tubular support 13 tomove instantaneously downwardly.

The hypodermic syringe is located within the tubular support 13 as isillustrated in FIG. 3, the displacement of the tubular support in themanner described resulting in the displacement of the hypodermic syringeand consequent insertion of the needle in the zone to be injected, tothe predetermined and proper depth.

The displacement of the tubular support 13 within the body 10 isdetermined by the position of telescopic stop member 32 situated at thelower end of the main support or guide 10 and which may be placed at anyone of various distances in relation to the lower end 12 of said mainsupport 10 by adjusting means illustrated in one form as shown in FIGS.9 and 10.

For the purpose of adjusting the telescopic stop member 32, onemodification shown in FIGS. 9 and 9a illustrates the lower end 12 of themain support cylinder 10 provided with a projection or pin 33 adapted toslidably operate in the slots 34 of the telescopic stop member 32.

In the modification shown in FIG. 10, the projection or pin 33 at theupper end of the main support or guide cylinder 10 is adapted to bepositioned in any one of the lateral slots 34' of upper collar 1 1 thedepth of the needle insertion being determined by the lateral slotselected.

What I claim as new and desire to Secure by Letters Patent 1. Ahypodermic-applicating device comprising a syringesupporting member,

a guide support member telescopingly receiving the syringesupportingmember,

a spring means between the syringe-supporting member and the guidesupport member for biasing the members into a telescoping foldedposition,

means for releasably cocking the syringe-supporting member into anextended position in relation to the guide-supporting member,

the cocking means comprising an annular groove in the lower portion ofthe hypodermic syringe-supporting member,

a pair of spaced arcuate segments oppositely disposed between the upperportion of the guide-supporting member and the hypodermicsyringe-supporting member and adapted to be received in the annulargroove,

a spring segment positioned between one pair of adjacent ends of thearcuate segments normally urging said arcuate segments into grooveengaging position,

the other pair of adjacent ends of the arcuate segments being bevelled,

and release means comprising a manually operable element having bevelledsurfaces contacting the bevelled ends of the arcuate segments andadapted to force said bevelled ends apart to release the segments fromthe annular groove, releasing the syringe-supporting member from theguide support member for rapid longitudinal movement of the hypodermicsyringe and its supporting member through the guide support member andinsertion of the needle of the syringe into the patient receiving theinjection.

1. A hypodermic-applicating device comprising a syringesupportingmember, a guide support member telescopingly receiving thesyringesupporting member, a spring means between the syringe-supportingmember and the guide support member for biasing the members into atelescoping folded position, means for releasably cocking thesyringe-supporting member into an extended position in relation to theguide-supporting member, the cocking means comprising an annular groovein the lower portion of the hypodermic syringe-supporting member, a pairof spaced arcuate segments oppositely disposed between the upper portionof the guide-supporting member and the hypodermic syringe-supportingmember and adapted to be received in the annular groove, a springsegment positioned between one pair of adjacent ends of the arcuatesegments normally urging said arcuate segments into groove engagingposition, the other pair of adjacent ends of the arcuate segments beingbevelled, and release means comprising a manually operable elementhaving bevelled surfaces contacting the bevelled ends of the arcuatesegments and adapted to force said bevelled ends apart to release thesegments from the annular groove, releasing the syringe-supportingmember from the guide support member for rapid longitudinal movement ofthe hypodermic syringe and its supporting member through the guidesupport member and insertion of the needle of the syringe into thepatient receiving the injection.